AQSQID: 060371701

Site Name: Pomona

Location: Pomona, CA

Reporting: True, Located: True

Current AQI: 23.0

Pomona CA, US: 34.0667, -117.7506

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 23, 2019, 10 a.m. 25.0 ppb (23) 1.8 ppb (2) N/A 23.0 ppb (21) N/A N/A 12.0 ppb (9) 0.34 ppb (4) N/A N/A 23.0
 
July 23, 2019, 9 a.m. 25.6 ppb (24) 1.9 ppb (2) N/A 24.0 ppb (22) N/A N/A 11.0 ppb (8) 0.32 ppb (4) N/A N/A 24.0
 
July 23, 2019, 8 a.m. 22.7 ppb (21) 1.6 ppb (1) N/A 21.0 ppb (19) N/A N/A 12.0 ppb (9) 0.29 ppb (3) N/A N/A 21.0
 
July 23, 2019, 7 a.m. 23.8 ppb (22) 1.3 ppb (1) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.26 ppb (3) N/A N/A 22.0
 
July 23, 2019, 6 a.m. 21.3 ppb (20) 1.1 ppb (1) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (14) 0.32 ppb (4) N/A N/A 20.0
 
July 23, 2019, 5 a.m. 21.7 ppb (20) 1.3 ppb (1) N/A 20.0 ppb (19) N/A N/A 20.0 ppb (15) 0.34 ppb (4) N/A N/A 20.0
 
July 23, 2019, 4 a.m. 20.8 ppb (19) 1.4 ppb (1) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (19) 0.33 ppb (4) N/A N/A 19.0
 
July 23, 2019, 3 a.m. 17.9 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (16) N/A N/A 32.0 ppb (25) 0.3 ppb (3) N/A N/A 25.0
 
July 23, 2019, 2 a.m. 15.6 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A N/A 44.0 ppb (34) 0.27 ppb (3) N/A N/A 34.0
 
July 23, 2019, 1 a.m. 14.6 ppb (14) 1.4 ppb (1) N/A 13.0 ppb (12) N/A N/A 52.0 ppb (40) 0.26 ppb (3) N/A N/A 40.0
 
July 23, 2019, midnight 16.6 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A 58.0 ppb (45) 0.28 ppb (3) N/A N/A 45.0
 
July 22, 2019, 11 p.m. 12.6 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 72.0 ppb (56) 0.31 ppb (3) N/A N/A 56.0
 
July 22, 2019, 10 p.m. 12.7 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 75.0 ppb (58) 0.31 ppb (3) N/A N/A 58.0
 
July 22, 2019, 9 p.m. 16.5 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (13) N/A N/A 66.0 ppb (51) 0.34 ppb (4) N/A N/A 51.0
 
July 22, 2019, 8 p.m. 19.9 ppb (18) 3.6 ppb (3) N/A 16.0 ppb (15) N/A N/A 54.0 ppb (42) 0.36 ppb (4) N/A N/A 42.0
 
July 22, 2019, 7 p.m. 20.0 ppb (19) 4.3 ppb (4) N/A 16.0 ppb (15) N/A N/A 44.0 ppb (34) 0.35 ppb (4) N/A N/A 34.0
 
July 22, 2019, 6 p.m. 32.4 ppb (30) 11.8 ppb (11) N/A 21.0 ppb (19) N/A N/A 27.0 ppb (21) 0.4 ppb (4) N/A N/A 30.0
 
July 22, 2019, 5 p.m. 35.2 ppb (33) 14.6 ppb (14) N/A 21.0 ppb (19) N/A N/A 19.0 ppb (15) 0.4 ppb (4) N/A N/A 33.0
 
July 22, 2019, 4 p.m. 37.3 ppb (35) 17.2 ppb (16) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (10) 0.41 ppb (5) N/A N/A 35.0
 
July 22, 2019, 3 p.m. 39.8 ppb (37) 19.4 ppb (18) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (7) 0.44 ppb (5) N/A N/A 37.0
 
July 22, 2019, 2 p.m. 46.4 ppb (43) 25.4 ppb (24) N/A 21.0 ppb (19) N/A N/A 8.0 ppb (6) 0.44 ppb (5) N/A N/A 43.0
 
July 22, 2019, 1 p.m. 52.8 ppb (49) 26.7 ppb (25) N/A 26.0 ppb (24) N/A N/A 6.0 ppb (5) 0.46 ppb (5) N/A N/A 49.0
 
July 22, 2019, noon 21.3 ppb (20) 4.1 ppb (4) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.31 ppb (3) N/A N/A 20.0
 
July 22, 2019, 11 a.m. 20.1 ppb (19) 2.1 ppb (2) N/A 18.0 ppb (17) N/A N/A 8.0 ppb (6) 0.28 ppb (3) N/A N/A 19.0
 
July 22, 2019, 10 a.m. 22.3 ppb (21) 2.1 ppb (2) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (6) 0.3 ppb (3) N/A N/A 21.0
 
July 22, 2019, 9 a.m. 14.5 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.26 ppb (3) N/A N/A 13.0
 
July 22, 2019, 8 a.m. 12.3 ppb (11) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.26 ppb (3) N/A N/A 11.0
 
July 22, 2019, 7 a.m. 15.6 ppb (14) 0.7 ppb (1) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) 0.32 ppb (4) N/A N/A 15.0
 
July 22, 2019, 6 a.m. 14.3 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A N/A 18.0
 
July 22, 2019, 5 a.m. 17.8 ppb (16) 1.1 ppb (1) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.35 ppb (4) N/A N/A 18.0
 
July 22, 2019, 4 a.m. 15.9 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (14) N/A N/A 31.0 ppb (24) 0.32 ppb (4) N/A N/A 24.0
 
July 22, 2019, 3 a.m. 13.3 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 32.0 ppb (25) 0.29 ppb (3) N/A N/A 25.0
 
July 22, 2019, 2 a.m. 14.1 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.29 ppb (3) N/A N/A 25.0
 
July 22, 2019, 1 a.m. 7.9 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 52.0 ppb (40) 0.25 ppb (3) N/A N/A 40.0
 
July 22, 2019, midnight 8.5 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 56.0 ppb (43) 0.26 ppb (3) N/A N/A 43.0
 
July 21, 2019, 11 p.m. 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 68.0 ppb (52) 0.26 ppb (3) N/A N/A 52.0
 
July 21, 2019, 10 p.m. 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 70.0 ppb (54) 0.25 ppb (3) N/A N/A 54.0
 
July 21, 2019, 9 p.m. 6.3 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 65.0 ppb (50) 0.27 ppb (3) N/A N/A 50.0
 
July 21, 2019, 8 p.m. 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 62.0 ppb (48) 0.23 ppb (3) N/A N/A 48.0
 
July 21, 2019, 7 p.m. 6.5 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 59.0 ppb (45) 0.24 ppb (3) N/A N/A 45.0
 
July 21, 2019, 6 p.m. 8.8 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 50.0 ppb (38) 0.26 ppb (3) N/A N/A 38.0
 
July 21, 2019, 5 p.m. 16.7 ppb (15) 4.4 ppb (4) N/A 12.0 ppb (11) N/A N/A 37.0 ppb (28) 0.31 ppb (3) N/A N/A 28.0
 
July 21, 2019, 4 p.m. 20.6 ppb (19) 7.0 ppb (6) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) 0.34 ppb (4) N/A N/A 20.0
 
July 21, 2019, 3 p.m. 22.0 ppb (20) 9.1 ppb (8) N/A 13.0 ppb (12) N/A N/A 18.0 ppb (14) 0.33 ppb (4) N/A N/A 20.0
 
July 21, 2019, 2 p.m. 22.7 ppb (21) 10.1 ppb (9) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.31 ppb (3) N/A N/A 21.0
 
July 21, 2019, 1 p.m. 19.9 ppb (18) 5.5 ppb (5) N/A 14.0 ppb (13) N/A N/A 8.0 ppb (6) 0.29 ppb (3) N/A N/A 18.0
 
July 21, 2019, noon 18.6 ppb (17) 2.8 ppb (3) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) 0.27 ppb (3) N/A N/A 17.0
 
July 21, 2019, 11 a.m. 17.0 ppb (16) 2.9 ppb (3) N/A 14.0 ppb (13) N/A N/A 9.0 ppb (7) 0.32 ppb (4) N/A N/A 16.0
 
July 21, 2019, 10 a.m. 16.1 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A 10.0 ppb (8) 0.27 ppb (3) N/A N/A 15.0
 
July 21, 2019, 9 a.m. 16.5 ppb (15) 1.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.3 ppb (3) N/A N/A 15.0
 
July 21, 2019, 8 a.m. 19.7 ppb (18) 1.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) 0.37 ppb (4) N/A N/A 18.0
 
July 21, 2019, 7 a.m. 19.0 ppb (18) 1.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 14.0 ppb (11) 0.32 ppb (4) N/A N/A 18.0
 
July 21, 2019, 6 a.m. 17.0 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A 16.0 ppb (12) 0.31 ppb (3) N/A N/A 16.0
 
July 21, 2019, 5 a.m. 14.7 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.28 ppb (3) N/A N/A 16.0
 
July 21, 2019, 4 a.m. 16.6 ppb (15) 0.8 ppb (1) N/A 16.0 ppb (15) N/A N/A 23.0 ppb (18) 0.28 ppb (3) N/A N/A 18.0
 
July 21, 2019, 3 a.m. 14.5 ppb (13) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 28.0 ppb (22) 0.27 ppb (3) N/A N/A 22.0
 
July 21, 2019, 2 a.m. 10.7 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 36.0 ppb (28) 0.25 ppb (3) N/A N/A 28.0
 
July 21, 2019, 1 a.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 52.0 ppb (40) 0.22 ppb (2) N/A N/A 40.0
 
July 21, 2019, midnight 12.0 ppb (11) 3.9 ppb (4) N/A 8.0 ppb (7) N/A N/A 58.0 ppb (45) 0.22 ppb (2) N/A N/A 45.0
 
July 20, 2019, 11 p.m. 15.5 ppb (14) 6.3 ppb (6) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.22 ppb (2) N/A N/A 45.0
 
July 20, 2019, 10 p.m. 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 64.0 ppb (49) 0.23 ppb (3) N/A N/A 49.0
 
July 20, 2019, 9 p.m. 5.9 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 62.0 ppb (48) 0.23 ppb (3) N/A N/A 48.0
 
July 20, 2019, 8 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 59.0 ppb (45) 0.23 ppb (3) N/A N/A 45.0
 
July 20, 2019, 7 p.m. 6.3 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) 0.23 ppb (3) N/A N/A 42.0
 
July 20, 2019, 6 p.m. 9.5 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) 0.28 ppb (3) N/A N/A 33.0
 
July 20, 2019, 5 p.m. 14.9 ppb (14) 4.8 ppb (4) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.3 ppb (3) N/A N/A 23.0
 
July 20, 2019, 4 p.m. 13.6 ppb (13) 4.9 ppb (5) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.29 ppb (3) N/A N/A 19.0
 
July 20, 2019, 3 p.m. 12.7 ppb (12) 3.7 ppb (3) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.26 ppb (3) N/A N/A 16.0
 
July 20, 2019, 2 p.m. 17.5 ppb (16) 7.4 ppb (7) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.29 ppb (3) N/A N/A 16.0
 
July 20, 2019, 1 p.m. 10.8 ppb (10) 2.2 ppb (2) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A N/A 14.0
 
July 20, 2019, noon 8.4 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.23 ppb (3) N/A N/A 15.0
 
July 20, 2019, 11 a.m. 10.3 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.23 ppb (3) N/A N/A 13.0
 
July 20, 2019, 10 a.m. 10.8 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.23 ppb (3) N/A N/A 13.0
 
July 20, 2019, 9 a.m. 10.0 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.22 ppb (2) N/A N/A 12.0
 
July 20, 2019, 8 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.22 ppb (2) N/A N/A 12.0
 
July 20, 2019, 7 a.m. 12.9 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.23 ppb (3) N/A N/A 12.0
 
July 20, 2019, 6 a.m. 14.7 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.24 ppb (3) N/A N/A 14.0
 
July 20, 2019, 5 a.m. 21.4 ppb (20) 2.1 ppb (2) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) 0.31 ppb (3) N/A N/A 20.0
 
July 20, 2019, 4 a.m. 21.9 ppb (20) 1.6 ppb (1) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (14) 0.3 ppb (3) N/A N/A 20.0
 
July 20, 2019, 3 a.m. 16.2 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) 0.26 ppb (3) N/A N/A 18.0
 
July 20, 2019, 2 a.m. 11.4 ppb (11) 1.7 ppb (2) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.21 ppb (2) N/A N/A 23.0
 
July 20, 2019, 1 a.m. 8.6 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) 0.19 ppb (2) N/A N/A 28.0
 
July 20, 2019, midnight 7.4 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) 0.18 ppb (2) N/A N/A 34.0
 
July 19, 2019, 11 p.m. 10.3 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) 0.19 ppb (2) N/A N/A 35.0
 
July 19, 2019, 10 p.m. 6.6 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.19 ppb (2) N/A N/A 38.0
 
July 19, 2019, 9 p.m. 6.8 ppb (6) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 52.0 ppb (40) 0.22 ppb (2) N/A N/A 40.0
 
July 19, 2019, 8 p.m. 10.4 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 46.0 ppb (35) 0.23 ppb (3) N/A N/A 35.0
 
July 19, 2019, 7 p.m. 12.2 ppb (11) 3.3 ppb (3) N/A 9.0 ppb (8) N/A N/A 41.0 ppb (32) 0.22 ppb (2) N/A N/A 32.0
 
July 19, 2019, 6 p.m. 21.8 ppb (20) 7.9 ppb (7) N/A 14.0 ppb (13) N/A N/A 27.0 ppb (21) 0.27 ppb (3) N/A N/A 21.0
 
July 19, 2019, 5 p.m. 22.0 ppb (20) 9.1 ppb (8) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.3 ppb (3) N/A N/A 20.0
 
July 19, 2019, 4 p.m. 20.3 ppb (19) 8.3 ppb (8) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.3 ppb (3) N/A N/A 19.0
 
July 19, 2019, 3 p.m. 20.4 ppb (19) 8.8 ppb (8) N/A 12.0 ppb (11) N/A N/A 15.0 ppb (12) 0.28 ppb (3) N/A N/A 19.0
 
July 19, 2019, 2 p.m. 22.7 ppb (21) 9.4 ppb (9) N/A 13.0 ppb (12) N/A N/A 11.0 ppb (8) 0.29 ppb (3) N/A N/A 21.0
 
July 19, 2019, 1 p.m. 18.3 ppb (17) 3.7 ppb (3) N/A 15.0 ppb (14) N/A N/A 9.0 ppb (7) 0.27 ppb (3) N/A N/A 17.0
 
July 19, 2019, noon 19.6 ppb (18) 2.9 ppb (3) N/A 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.28 ppb (3) N/A N/A 18.0
 
July 19, 2019, 11 a.m. 15.0 ppb (14) 1.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 10.0 ppb (8) 0.22 ppb (2) N/A N/A 14.0
 
July 19, 2019, 10 a.m. 13.0 ppb (12) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 11.0 ppb (8) 0.2 ppb (2) N/A N/A 12.0
 
July 19, 2019, 9 a.m. 14.2 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 10.0 ppb (8) 0.2 ppb (2) N/A N/A 13.0
 
July 19, 2019, 8 a.m. 13.6 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 11.0 ppb (8) 0.22 ppb (2) N/A N/A 13.0
 
July 19, 2019, 7 a.m. 15.4 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) 0.22 ppb (2) N/A N/A 14.0
 
July 19, 2019, 6 a.m. 14.9 ppb (14) 1.5 ppb (1) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.22 ppb (2) N/A N/A 14.0
 
July 19, 2019, 5 a.m. 14.0 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.21 ppb (2) N/A N/A 13.0
 
July 19, 2019, 4 a.m. 13.5 ppb (12) 1.4 ppb (1) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.22 ppb (2) N/A N/A 14.0
 
July 19, 2019, 3 a.m. 15.4 ppb (14) 1.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.23 ppb (3) N/A N/A 16.0
 
July 19, 2019, 2 a.m. 11.6 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) 0.23 ppb (3) N/A N/A 24.0
 
July 19, 2019, 1 a.m. 8.4 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) 0.2 ppb (2) N/A N/A 29.0
 
July 19, 2019, midnight 5.9 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.18 ppb (2) N/A N/A 29.0
 
July 18, 2019, 11 p.m. 6.1 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.17 ppb (2) N/A N/A 32.0
 
July 18, 2019, 10 p.m. 6.3 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.2 ppb (2) N/A N/A 38.0
 
July 18, 2019, 9 p.m. 8.3 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.23 ppb (3) N/A N/A 44.0
 
July 18, 2019, 8 p.m. 9.0 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.24 ppb (3) N/A N/A 44.0
 
July 18, 2019, 7 p.m. 10.9 ppb (10) 2.2 ppb (2) N/A 9.0 ppb (8) N/A N/A 49.0 ppb (38) 0.26 ppb (3) N/A N/A 38.0
 
July 18, 2019, 6 p.m. 15.5 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (10) N/A N/A 38.0 ppb (29) 0.27 ppb (3) N/A N/A 29.0
 
July 18, 2019, 5 p.m. 18.5 ppb (17) 6.2 ppb (6) N/A 12.0 ppb (11) N/A N/A 28.0 ppb (22) 0.29 ppb (3) N/A N/A 22.0
 
July 18, 2019, 4 p.m. 24.0 ppb (22) 10.3 ppb (10) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) 0.31 ppb (3) N/A N/A 22.0
 
July 18, 2019, 3 p.m. 25.2 ppb (23) 11.8 ppb (11) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.34 ppb (4) N/A N/A 23.0
 
July 18, 2019, 2 p.m. 28.7 ppb (27) 14.4 ppb (13) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) 0.33 ppb (4) N/A N/A 27.0
 
July 18, 2019, 1 p.m. 30.0 ppb (28) 12.8 ppb (12) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.31 ppb (3) N/A N/A 28.0
 
July 18, 2019, noon 28.4 ppb (26) 9.3 ppb (9) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (3) 0.25 ppb (3) N/A N/A 26.0
 
July 18, 2019, 11 a.m. 12.4 ppb (11) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.21 ppb (2) N/A N/A 11.0
 
July 18, 2019, 10 a.m. 12.0 ppb (11) 1.1 ppb (1) N/A 11.0 ppb (10) N/A N/A 11.0 ppb (8) 0.19 ppb (2) N/A N/A 11.0
 
July 18, 2019, 9 a.m. 13.9 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 10.0 ppb (8) 0.18 ppb (2) N/A N/A 13.0
 
July 18, 2019, 8 a.m. 8.7 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) 0.17 ppb (2) N/A N/A 11.0
 
July 18, 2019, 7 a.m. 9.0 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.18 ppb (2) N/A N/A 12.0
 
July 18, 2019, 6 a.m. 8.9 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.18 ppb (2) N/A N/A 12.0
 
July 18, 2019, 5 a.m. 13.5 ppb (12) 1.8 ppb (2) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.18 ppb (2) N/A N/A 12.0
 
July 18, 2019, 4 a.m. 10.8 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.19 ppb (2) N/A N/A 13.0
 
July 18, 2019, 3 a.m. 9.2 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.2 ppb (2) N/A N/A 17.0
 
July 18, 2019, 2 a.m. 10.3 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.19 ppb (2) N/A N/A 22.0
 
July 18, 2019, 1 a.m. 7.7 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.2 ppb (2) N/A N/A 32.0
 
July 18, 2019, midnight 6.6 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) 0.21 ppb (2) N/A N/A 35.0
 
July 17, 2019, 11 p.m. 7.1 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (37) 0.2 ppb (2) N/A N/A 37.0
 
July 17, 2019, 10 p.m. 7.1 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (39) 0.19 ppb (2) N/A N/A 39.0
 
July 17, 2019, 9 p.m. 6.9 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (41) 0.21 ppb (2) N/A N/A 41.0
 
July 17, 2019, 8 p.m. 9.6 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A 56.0 ppb (43) 0.27 ppb (3) N/A N/A 43.0
 
July 17, 2019, 7 p.m. 12.3 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 49.0 ppb (38) 0.26 ppb (3) N/A N/A 38.0
 
July 17, 2019, 6 p.m. 19.3 ppb (18) 4.8 ppb (4) N/A 14.0 ppb (13) N/A N/A 37.0 ppb (28) 0.3 ppb (3) N/A N/A 28.0
 
July 17, 2019, 5 p.m. 20.1 ppb (19) 6.2 ppb (6) N/A 14.0 ppb (13) N/A N/A 32.0 ppb (25) 0.31 ppb (3) N/A N/A 25.0
 
July 17, 2019, 4 p.m. 23.2 ppb (21) 8.9 ppb (8) N/A 14.0 ppb (13) N/A N/A 22.0 ppb (17) 0.33 ppb (4) N/A N/A 21.0
 
July 17, 2019, 3 p.m. 22.8 ppb (21) 10.2 ppb (9) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.31 ppb (3) N/A N/A 21.0
 
July 17, 2019, 2 p.m. 29.3 ppb (27) 15.1 ppb (14) N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) 0.31 ppb (3) N/A N/A 27.0
 
July 17, 2019, 1 p.m. 19.8 ppb (18) 6.4 ppb (6) N/A 13.0 ppb (12) N/A N/A 11.0 ppb (8) 0.28 ppb (3) N/A N/A 18.0
 
July 17, 2019, noon 16.6 ppb (15) 4.4 ppb (4) N/A 12.0 ppb (11) N/A N/A 11.0 ppb (8) 0.26 ppb (3) N/A N/A 15.0
 
July 17, 2019, 11 a.m. 12.2 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A 12.0 ppb (9) 0.21 ppb (2) N/A N/A 11.0
 
July 17, 2019, 10 a.m. 10.6 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.19 ppb (2) N/A N/A 11.0
 
July 17, 2019, 9 a.m. 8.0 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.16 ppb (2) N/A N/A 12.0
 
July 17, 2019, 8 a.m. 8.7 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) 0.18 ppb (2) N/A N/A 12.0
 
July 17, 2019, 7 a.m. 11.0 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.19 ppb (2) N/A N/A 12.0
 
July 17, 2019, 6 a.m. 12.0 ppb (11) 1.1 ppb (1) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.21 ppb (2) N/A N/A 12.0
 
July 17, 2019, 5 a.m. 14.0 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) 0.19 ppb (2) N/A N/A 13.0
 
July 17, 2019, 4 a.m. 15.7 ppb (15) 1.7 ppb (2) N/A 14.0 ppb (13) N/A N/A 19.0 ppb (15) 0.21 ppb (2) N/A N/A 15.0
 
July 17, 2019, 3 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.21 ppb (2) N/A N/A 20.0
 
July 17, 2019, 2 a.m. 9.5 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.2 ppb (2) N/A N/A 22.0
 
July 17, 2019, 1 a.m. 7.2 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.19 ppb (2) N/A N/A 27.0
 
July 17, 2019, midnight 6.8 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) 0.2 ppb (2) N/A N/A 33.0
 
July 16, 2019, 11 p.m. 6.3 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) 0.18 ppb (2) N/A N/A 37.0
 
July 16, 2019, 10 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) 0.18 ppb (2) N/A N/A 41.0
 
July 16, 2019, 9 p.m. 5.2 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) 0.19 ppb (2) N/A N/A 44.0
 
July 16, 2019, 8 p.m. 7.0 ppb (6) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 58.0 ppb (45) 0.2 ppb (2) N/A N/A 45.0
 
July 16, 2019, 7 p.m. 10.6 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 60.0 ppb (46) 0.26 ppb (3) N/A N/A 46.0
 
July 16, 2019, 6 p.m. 24.2 ppb (22) 3.8 ppb (4) N/A 20.0 ppb (19) N/A N/A 57.0 ppb (44) 0.38 ppb (4) N/A N/A 44.0
 
July 16, 2019, 5 p.m. 30.9 ppb (29) 5.1 ppb (5) N/A 26.0 ppb (24) N/A N/A 51.0 ppb (39) 0.42 ppb (5) N/A N/A 39.0
 
July 16, 2019, 4 p.m. 43.1 ppb (40) 9.8 ppb (9) N/A 33.0 ppb (31) N/A N/A 39.0 ppb (30) 0.47 ppb (5) N/A N/A 40.0
 
July 16, 2019, 3 p.m. 79.2 ppb (77) 33.5 ppb (31) N/A 46.0 ppb (43) N/A N/A 17.0 ppb (13) 0.69 ppb (8) N/A N/A 77.0
 
July 16, 2019, 2 p.m. 103.0 ppb (100) 57.6 ppb (54) N/A 45.0 ppb (42) N/A N/A 8.0 ppb (6) 0.85 ppb (9) N/A N/A 100.0
 
July 16, 2019, 1 p.m. 83.4 ppb (81) 49.3 ppb (46) N/A 34.0 ppb (31) N/A N/A 5.0 ppb (4) 0.7 ppb (8) N/A N/A 81.0
 
July 16, 2019, noon 67.2 ppb (64) 34.7 ppb (32) N/A 32.0 ppb (30) N/A N/A 4.0 ppb (3) 0.55 ppb (6) N/A N/A 64.0
 
July 16, 2019, 11 a.m. 43.1 ppb (40) 11.3 ppb (10) N/A 32.0 ppb (30) N/A N/A 4.0 ppb (3) 0.44 ppb (5) N/A N/A 40.0